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Grid/lib/qcd/action/fermion/MobiusFermion.h
Peter Boyle 802e94e9ca First pass at continued fraction; solver and even odd decomposition tests pass.
Have to make ContFrac class virtual and derive end non-abstract actions for the particular
cases.
2015-06-04 00:00:45 +01:00

48 lines
1.0 KiB
C++

#ifndef GRID_QCD_MOBIUS_FERMION_H
#define GRID_QCD_MOBIUS_FERMION_H
#include <Grid.h>
namespace Grid {
namespace QCD {
class MobiusFermion : public CayleyFermion5D
{
public:
virtual void Instantiatable(void) {};
// Constructors
MobiusFermion(LatticeGaugeField &_Umu,
GridCartesian &FiveDimGrid,
GridRedBlackCartesian &FiveDimRedBlackGrid,
GridCartesian &FourDimGrid,
GridRedBlackCartesian &FourDimRedBlackGrid,
RealD _mass,RealD _M5,
RealD b, RealD c) :
CayleyFermion5D(_Umu,
FiveDimGrid,
FiveDimRedBlackGrid,
FourDimGrid,
FourDimRedBlackGrid,_mass,_M5)
{
RealD eps = 1.0;
std::cout << "MobiusFermion (b="<<b<<",c="<<c<<") with Ls= "<<Ls<<" Tanh approx"<<std::endl;
Approx::zolotarev_data *zdata = Approx::grid_higham(eps,this->Ls);// eps is ignored for higham
assert(zdata->n==this->Ls);
// Call base setter
this->CayleyFermion5D::SetCoefficientsTanh(zdata,b,c);
}
};
}
}
#endif